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Op amp aimed at front-end amplifier apps

21 Dec 2012

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Analog Devices Inc. (ADI) has rolled out what it touts as a high precision amplifier offering the industry's best combination of offset voltage, voltage thermal drift, bandwidth, slew rate and voltage noise for front-end amplifier circuits. The ADA4077-2 operational amplifier is aimed at applications in process control, chemical and environmental monitoring, motor control and electronic test and instrumentation due to its high DC precision with noise, speed and supply current applicable for the designs, detailed the company.

The ADA4077-2 has a typical bandwidth of 3.9MHz and 7-nV/√Hz voltage noise at 1kHz while consuming only 400µA typical at 25°C with ±15Vdc nominal power supplies. Available in two grades for offset and thermal drift, the device provides design engineers with the flexibility to meet budget and packaging requirements.

Compared to its closest competition, the ADA4077-2 offers higher speed with lower noise, offset and drift while consuming less power, making the ADA4077-2 an ideal, cost-effective op amp for front end sensor interface in applications such as process control input modules, where high accuracy, precision and linearity are critical to accurate measurement of sensor output.

The ADA4077-2 precision amplifier is well suited to operate with ADI's 12, 14 and 16bit DACs and ADCs up to 1MSPS, including the AD5444, AD7265 and AD7266.


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